Ah, that's a fair approach.

I was thinking of it this way: Hallucinaut assumed that armitron was male, because a female would never make that argument. However, 46% of people who believe that abortion should be illegal in almost all cases are female, which makes Hallucinaut's assumption very bad.

Your approach is valid in other contexts, but I don't think it's the most relevant to the question I was addressing.